KR101174023B1 - Agent for dissociation of defective sheet of paper of banknote and dissociation process using the same - Google Patents

Abstract

The present invention provides a liquid component consisting of (a) hydrogen peroxide and 2-butoxyethanol, and (b) soda ash and fruit, which are used to dissociate and re-use a defective paper (phage) produced in banknote paper. A dissociating agent comprising a solid component consisting of sodium sulfate and a dissociation process using the same. According to the present invention, since chlorine gas is not generated during the dissociation process because no chlorine-based toxic substance is used as the dissociating agent, the worker's health threat due to the chlorine gas is eliminated, and the dissociation process can be performed at an elevated temperature. As a result, the processing time can be shortened and work efficiency can be improved.

Description

Phage dissociation agent of banknote paper and dissociation process using same {AGENT FOR DISSOCIATION OF DEFECTIVE SHEET OF PAPER OF BANKNOTE AND DISSOCIATION PROCESS USING THE SAME}

The present invention relates to a paper dissociation agent of a banknote paper and a dissociation process using the same.

Generally, banknote paper is made of cotton fibers. Specifically, cotton pulp is manufactured by using a foil or a linter in a cotton spinning process, and epoxy resin and other fillers, which are a paper strength increasing agent, are added thereto to prepare a paper pulp. If a defect occurs in this process, it becomes a defective paper (grip). The process of reusing the phage generated in the papermaking process is called a dissociation process. In the dissociation process, the epoxy resin added during the papermaking process must be removed.

Epoxy resins used in papermaking are very difficult to remove, and currently, chemicals that are harmful to humans or unsuitable for industrial use are used to remove epoxy resins in the dissociation process.

In the conventional dissociation step of phage, trichloroisocyanuric acid represented by the following formula (1) is used as a dissociating agent.

1 shows a conventional dissociation process using trichloroisocyanuric acid as a dissociating agent. As shown in FIG. 1, in the conventional dissociation process, 30 kg of trichloroisocyanuric acid is added to 300 kg of phage on banknote paper and dissociated at room temperature for 2.5 to 3 hours.

However, trichloroisocyanuric acid, which is used as a dissociation agent in the conventional dissociation process, is a chlorine-based toxic substance, and the chlorine gas generated in the dissociation process acts as a threat to the health of workers, and the dissociation process due to the generation of chlorine gas. It should be carried out at room temperature, which leads to a long working time.

However, there will be legal restrictions on the use of chlorine-based compounds in the future, and the use of chlorine-based chemicals will also be regulated when exporting banknote papers, so do not use chemicals that are harmful to humans or unsuitable for industrial use. It is necessary to develop a new dissociation agent and a dissociation process using the same that can be used for the dissociation process of banknote paper.

Accordingly, it is an object of the present invention to grasp a dissociating agent for banknote paper, which can remove the epoxy resin (epichlorohydrin) used in the manufacture of banknote paper without the use of chemicals that are harmful to humans or unsuitable for industrial use. And it provides a dissociation process using the dissociating agent.

The object of the present invention as described above is conventionally a banknote by dissociating the holding of the banknote paper using hydrogen peroxide, soda carbonate, sodium persulfate and 2-butoxyethanol By substituting trichloroisocyanuric acid for dissociation of paper. Therefore, the problem solving means of this invention is as follows.

A dissociating agent for dissociating phages of banknote paper, comprising (1) a liquid component consisting of (a) hydrogen peroxide and 2-butoxyethanol, and (b) a solid component consisting of soda ash and sodium persulfate.

(2) 15 to 60 parts by weight of the liquid component (a), consisting of hydrogen peroxide and 2-butoxyethanol, and 5 to 20 parts by weight of the solid component, consisting of soda ash and sodium persulfate, per 300 parts by weight of the gripping paper. A method of dissociating banknote paper holding comprising mixing portions and dissociating the holding of the banknote paper at 70 ° C to 130 ° C.

According to the present invention, a dissociation agent for holding a banknote and a dissociation method using the same are provided.

In the present invention, when trichloroisocyanuric acid is used by dissociating the holding of the banknote paper using a dissociating agent consisting of a liquid component consisting of hydrogen peroxide and 2-butoxyethanol and (b) a solid component consisting of soda ash and sodium persulfate. To prevent harmful chlorine gas such as to remove the threat to the health of workers, the dissociation process was shortened by more than 1 hour in accordance with the rise of the working temperature to improve the work efficiency.

1 shows a conventional dissociation process using trichloroisocyanuric acid as a dissociating agent.
2 shows a dissociation process using a dissociating agent according to the invention.

The present invention relates to a dissociating agent for dissociating phage of banknote paper, comprising (a) a liquid component consisting of hydrogen peroxide and 2-butoxyethanol, and (b) a solid component consisting of soda ash and sodium persulfate.

The weight ratio between hydrogen peroxide and 2-butoxyethanol in the liquid component of (a) is 7: 3 to 9: 1, and the weight ratio between soda ash and sodium persulfate in the solid component of (b) is 1: 9 to 4: 6 is good. If the weight ratio between hydrogen peroxide and 2-butoxyethanol in the liquid component and the weight ratio between soda ash and sodium persulfate in the solid component are outside these numerical ranges, dissociation is poor and not suitable for the manufacture of banknote paper, and also the dissociation process time. It is not preferable because it is longer and production efficiency is lowered.

In addition, the present invention relates to a method of dissociating banknote paper holding, Figure 2 shows a dissociation process using a dissociating agent according to the present invention.

In the dissociation method according to the present invention, (a) 15 to 60 parts by weight of the liquid component consisting of hydrogen peroxide and 2-butoxyethanol, and (b) 5 to solid parts consisting of soda ash and sodium persulfate, based on 300 parts by weight of the gripping paper of the banknote paper. 20 parts by weight are mixed and the phage are dissociated at 70 to 130 ° C. The dissociation process takes 1.5 to 2 hours. If the solid and liquid components are used below the lower limit, respectively, the phages do not dissociate well. If the solid and liquid components are used above the upper limit, dissociation is too fast, so that subsequent processes are difficult to perform properly, and the process cost increases.

In the dissociation method according to the present invention, the ratio between hydrogen peroxide and 2-butoxyethanol constituting the liquid component of (a) and the ratio between soda ash and sodium persulfate constituting the solid component of (b) are Same as defined.

In the present invention, since a substance that generates chlorine gas is not used as a dissociating agent, a factor that threatens workers' health is eliminated, and the dissociation process can be carried out at 70 ° C to 130 ° C, thereby reducing work time, thereby improving work efficiency. This is improved.

Example

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the embodiments are only illustrative of the present invention, and the present invention is not limited to the scope of the embodiments.

Example 1

To 300 kg of paper on a banknote paper, a dissociating agent mixed with 60 kg of a liquid component consisting of hydrogen peroxide and 2-butoxyethanol and 20 kg of a solid component consisting of soda ash and sodium persulfate was added and maintained at 80 to 90 ° C. Dissociation for minutes completes the dissociation process.

As a result of manufacturing a banknote paper using the paper raw material dissociated by the method according to Example 1, the paper was produced without defect.

Example 2

To 300 kg of phages on banknote paper, a dissociating agent mixed with 30 kg of a liquid component consisting of hydrogen peroxide and 2-butoxyethanol and 20 kg of a solid component consisting of soda ash and sodium persulfate was added and maintained at 80 to 90 ° C. Dissociate for 30 minutes to complete the dissociation process.

As a result of manufacturing a banknote paper using the paper raw material dissociated by the method according to Example 2, the paper was produced without defect.

Example 3

To 300 kg of phage paper, 15 kg of a liquid component consisting of hydrogen peroxide and 2-butoxyethanol and a dissociating agent mixed with 5 kg of a solid component consisting of soda ash and sodium persulfate were added and maintained at 80 to 90 ° C. Dissociation for time completes the dissociation process.

As a result of manufacturing a banknote paper using the paper raw material dissociated by the method according to Example 3, the paper was produced without defect.

Claims (4)

A dissociation agent for dissociating phage papers, comprising (a) a liquid component consisting of hydrogen peroxide and 2-butoxyethanol, and (b) a solid component consisting of soda ash and sodium persulfate. The dissociating agent according to claim 1, wherein hydrogen peroxide and 2-butoxyethanol are mixed at a weight ratio of 7: 3 to 9: 1 in the liquid component of (a). The dissociating agent according to claim 1, wherein the soda ash and sodium persulfate in the solid component of (b) are mixed at a weight ratio of 1: 9 to 4: 6. 15 to 60 parts by weight of the liquid component consisting of hydrogen peroxide and 2-butoxyethanol, and 5 to 20 parts by weight of the solid component consisting of soda ash and sodium persulfate are mixed with respect to 300 parts by weight of the banknote paper. A method of dissociating banknote paper holding, comprising dissociating at ℃ to 130 ℃.

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